Coupling for the inflating-valves of pneumatic tires.



c. MONELLIS. 4 v COUPLING FOR THE INFLATING VALVES 0F PNEUMATIC TIRES.APPLIUATIQN FILED OUT. 3, 1908.

ggg gg v Patented Sept. 28, 1909.

Fzai. I QFZ'G. Q.

Witnesses 2 I Inventor:

CHARLES MCNELLIS, OF CHICAGO, ILLINOIS.

COUPLING FOR THE INFLATING-VALVES OE PNEUMATIC TIRES.

. USAF-l8.

Specification of Letters Patent.

Patented Sept. 28, race.

Application filed October 3, 1908. Serial No. 455,993,

To all 112710112. it may umcern:

.l e it. known that I. (hunmcs McNicLLIs, a tlttZtll ot' the l mtcdStates, and resident o't Chicago, in the county oi ook and State ofIllinois, have invented certain new and useful.improvements m (ouphngsfor the Irritating-Valves ot' Pneumatic Tires; and I do hereby declarethat the following description of my said invention, taken in conncction with the accompanying sheet of drawings, forms a full, clear, andexact specification, which will enable others skilled in the art towhich it appertains to make and use the same.

This invention has general reference to improvements in hosecouplingsfor the inflating-valves of pneumatic tires, whereby the air-compressoror tire-pump is connected with said valve, and the latter opened by theact of attaching the cou iling to said valve; aml itconsists,essentially, in the novel and peculiar combination of parts and detailsof construction as hereinafter first fully set forth and described andthen pointed out in the claims. I

In the drawings already referred to, and which serve to illustrate thisinvention more fully, Figure 1 is a longitudinalsectional elevation ofthis device taken in line :1: a of Fig. 3. Fig. 2 is an elevation,partly in section, of the tail-piece. showing a modification of mydevice. Fig. 3 is an inverted plan of said tail-piece, and Fiaperspective. view of a portion of the same, all these figures beingdrawnon, a very much enlarged scale. Fig. 5 is a perspective view of thecoupling drawn to nearly full size.

Like parts are designated by corresponding symbols and characters ofreference in all the figures The object of this invention is the production of a hose-coupling for connecting an ai1'-conn' 1:cssor orair-pump with the intiating-valve of pneumatic tires, that shall be soarranged that when the. coupling is ap- 5 plied to the mtlating-valvc itwill automaticallv open the valve for the admission of air and allow thesame to close instantly when the hose-coupling is removed therc- 1 1 perend ot the valve-rod .13, as clearly illust'rated n'ilhg. 1. to producea. hose-couplmg that shall be ci'mstructmn I may drill separate passages15 20. into the nipple 17, as shown in Fig. 2.

lrom. w i To accomplish the results described, and

eminently etl'ective, serviccal-ilc, and durable,

1 construct this hose-coupling substantially asitolhnvs: I I

The reference-lettxer A in the drawings designates a portion of aninflating-Valve for pneumatic tires, which valve is always provided witha val ve-spindle B, which, as usually constructcd, has a valve-proper,not shown, acted upon by a. spiral spring to normally close theinflating-valve, and which valve is opened by depressing saidvalvespindle. The outer, upper, end of this valve is externallyscrew-threaded at 2, to permit connection being made with the valve A toinflate a tire.

8 represents the coupling-nut. It is, preferably, a hexagonal bodyhaving an interior screw thread 4, and a reduced bore or chamber 5, toreceive a tail-piece 6, to be hereinafter described. In this nut thereis permanently located a sleeve 7, which is exterually screw-threaded toengage with the internal screw-thread of the nut 3, and in ternallyscrew-threaded for attachment to the inflating-valve A, as clearlyillustrated in Fig. 1, said sleeve 7 being screwed in, and forcedagainst, a seat 8, in said nut after the tail-piece G with. itspacking-disk 9 is placed in the nut 3, and it is then soldered to thenutto prevent its unscrewing and the witln drawal of said tail-piece 6,so as to perinanent'ly but revolubly connect the parts.

The tail-piece 6 consists of a tubehaving the usual corrugations 10, toform retainingcollars 13, whereby the rubber hose 14 is securely held tothe tail-piece. This tube has a collar or flange 15, which engages theshoulder 16 in the coupling-nut 3, and projecting centrally from saidcollar and in axial line with said tube there is a nipple 1T,

of such a length that when the coupling is in normal position upon theinflating-valve A. said nipple will force the valve-rod B down- *ardl v,sufficiently to fully open the inflating-valve proper. In order toaccomplish this result without reducing the passage 18, in saidtail-piece. this nipple 17, which when first produced is cylindrical incontour, is flattened at its lower end and then at liametricallyopposite sides torccd inwardly, as shown in Fig. 4, thereby producing.as it were.- two passages 1t), 20, by forming a bridge 21 whichbridgehears upon the up- As a modification of this such modificationbeingclearly within the scope of my present invent on.

The packing-disk f) already mentioned. is

preferably made from fiber or similar hard,

et t a certainextcnt elastic, material, and

' 1S eld within the coupling-nut 3 by the reevethis coupling iscomposed, the packing-disk a? is first placed upon thenipple 17- andthen vthe tail-piece passed into the nut, after.

whichthe sleeve 7 isscrewed into the nutand thenseldered therein, asalready mentioned.

When placed upon the inflating-valve A, the packing-disk 9 bears uponthe upper edge of the inflating-valve A and thereby tightly coi'inoctsthe coupling with the same, the nipple 17 having opened theinflatingvalve proper, as described. When the couplung is being removedfrom the lllllitllllgvalve A, the valve-rod B will. move with thetall-P1608 so that when the hose-conplmg has been disconne couplingcanbe manufactured 2\1l(l-S()l(l.' at

a very rmsonable price. lt is practically indestructible and being ofstandard size, will lit all standard tire-inflating valves now in themarket.

l-laving thus fully described this invention, I claim new and desire tosecure to me by Letters Patent of the United States- 1. A hose-couplingadapted to open a tireinflating valve when attached to said valve,comprising an internally screw threaded couplingnut, there being in saidnut'a reduced chamber and a still further reduced passage for thetail-piece; a tail-piece, there, being an integral flange on saidtail-piece and a nio )le smaller than the tubular bod of saidtail-piece; an internally and externally screw-threaded sleeve in saidnut, and a packing disk upon said nipple and bearing against the flangeof the tail-piece and the inner surface of said sleeve; said sleevebeing permanently secured in said nut, and the iackin disk and the tail-)iece ernianentl l tretained in said nut, there being a central passagethrough the tail-piece the lower exit in order to assemble the parts ofwhich opening being contracted to engage the stem of an inflating-valveas and for the object stated.

2. In a tire-infiatin valve adapted to be opened by the applicatlon of ahose-coupling having a member adapted to act upon the valve-stem of saidinflating-valve, a hosecoupling' comprising an internally screw threadedcoupling-nut, there being a re duced chamber and a still smaller passagein said but; atail-piece, being a tube having a bore throughout itsentire length; 211 flange on said tube engaging the reduced chamber, anda nipple at the end of .said' tube; a packing-disk upon said nipple, anda sleeve in said nut and permanently secured therein, said packing diskbeing interposed between the lower surface of said flange and the uppersurface of said sleeve to irreinovably secure the packing and thetail-piece to said coupling-nut, the exitend of the central passage insaid tailpiece being contracted to a-ilord a bridge across saidexit-opening to engage the stem of the inflating-valve when thecoupling-nut is applied-t0 said valve, as specified. I

3. In a hose-coupling for pneumatic tirevalves, a coupling-nut; atail-piece, there being a flange and a nipple on said tail-piece; apacking disk upon said tail-piece, and a sleeve in said nut andpermanently secured therein after the packing-disk and the tailpiecehave been placed in .said nu't, said packing-disk being interposedbetween the lower surface of said flange. and the upper sunface of saidsleeve.

4i. A hose-coupling including a tailpiece and .a couplin -nut, saidtail-piece being a tubular body, iliere being a series of retainingcollars and a larger collar on said tubular body and a nipple below saidlarger collar, the whole being an integral body, said nipple beingcylindrical at its junction with said collar and oblong at its end,there being diametrically opposite contractions at the lower end of saidnipple affording a bridge in the passage through said body and dividingthesaid passage at its end into two branches, as specified.

In testimony that I claim the foregoing as my invention-l have hereuntoset my hand in the presence of two subscribing witnesses.

' I CHARLES McNE-LLIS. Attest:

Micimiu. J. Srann, A. G. Pn'rnnsoN;

